Rory McIlroy and One Direction's Niall Horan's friendship is going from strength to strength.

The Holywood golfer posted a snap of the pair on his Facebook account and revealed they had just played a round of golf.

Posting the picture of the pair on Facebook, he wrote: "Great night in Toronto and fun round of golf with Niall Horan today at The National Golf Club of Canada. Thanks for having us guys, course is in great shape!"